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Prelinger Archives
by U.S. War Department, Army Pictorial Service
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Some good shots to be logged Title: "This film will not be shown to the public without permission of the War Department." CU AM/FM radio dial CU violinist in front of radio microphone VS two-way radio being used in combat Many great chalk talks, diagrams, animation showing technical aspects of radio transmission
FedFlix
by Department of Defense
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Department of Defense PIN 28398 FREQUENCY MODULATION - PART I - BASIC PRINCIPLES FUNDAMENTALS OF AM AND FM RADIO COMMUNICATION, HOW FM ELIMINATES PROBLEM OF ELECTRICAL INTERFERENCE, FUNCTIONING OF FM RADIO EXAMINED IN DETAIL.
Topics: defenseimagery.mil, public.resource.org
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